Cops trial world’s first laughing gas breathalyser in bid to tackle ‘emerging threat’ of drivers high on nitrous oxide

THE world’s first breathalyser for laughing gas is being trialled by two police forces. The move is to tackle the “emerging threat” of drivers high on nitrous oxide. And it is backed by the family of a teenager killed in a crash caused by a motorist who inhaled the gas at the wheel. The roadside...